Surface chemistry and friction behavior of Ti‐implanted 52100 steel
| Autor: | I. L. Singer, R. A. Jeffries |
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| Rok vydání: | 1983 |
| Předmět: | |
| Zdroj: | Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 1:317-321 |
| ISSN: | 1520-8559 0734-2101 |
| DOI: | 10.1116/1.572122 |
| Popis: | Auger spectroscopy, EDX, and optical microscopy have been used to analyze the friction and wear behavior of 52100 steel couples, one modified by Ti implantation (5–50×1016/cm2 at 190 keV). A low friction coefficient, μk=0.3, was measured on surfaces that were carburized by high fluence (>16×1016 Ti/cm2) implantation. A fully carburized layer, produced at 50×1016 Ti/cm2, resisted wear and retained the low friction coupling. Partially carburized layers, produced at 16 and 20×1016 Ti/cm2, gave an initially low friction coupling, μk=0.3; but after 6–10 passes, the partially carburized layer was sheared off exposing the underlying Fe–Ti alloy layer, and the friction coefficient rose to μk=0.8. A high friction coefficient, μk=0.8, was also measured on initial sliding contact with a surface implanted to a low fluence (5×1016 Ti/cm2). High friction is attributed to high adhesion between Fe in the slider and the Fe–Ti alloy found in the surface. Continued sliding contact (in air) against the Fe–Ti surface oxidized the Ti and Fe, and the friction coefficient dropped to a value of μk=0.6, characteristic of the nonimplanted sliding couples. |
| Databáze: | OpenAIRE |
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